Funny, one Proto-Indo-European society at the middle of Elamite, Mesopotamian and Dradivian languages, none of the Iranian Neolithic Cultures resemble Proto Indo European, neither had any material elements that could been related to them. Also imagine that a Patriarchal and Patrilineal Society was introduced by one lineage that simple was displaced , what happened? Non paternal events? Also its funny imagining Sedentary Societies that return to Nomadic or Semi-Nomadic lifestyle, cause of??
CHG-Like ancestry was found on Southern Steppe before the Neolithic and their mixture could been found at Deriivka I even before the existence of Maykop as well as Khvalynsk. Maykop had a Mesopotamian Styled culture, nothing to do With PIE, either any "Iranian" Culture, that were Matriarcal, had a typpical Natural-Gods patheon, was the first to adopted sedentarism, etc..
Funny cause several researches pointed to Zagros Mountain influence across the Anatolian Farmers, Levantine Pré Pottery and even single Semitic population much before they suggest that it went to Steppe. In fact the Earlier linguistical divergency points to EHG related cultures as the Archaic PIE groups, like David W. Anthony said.
Altough the most common lineages of R1a or R1b weren't found yet at Pontic Caspian during E_Neolithic it doesnt mean that weren't there, considering the fact that just few Y Lineages were found and Forest Steppe zone and Western Steppe had not been well studied yet.
Find one Kurgan on Iranian Plateau, one Horse Domestication evidence, funeral practices that indicate Patriarchal Societies or Indo European-Derived deites, just find any single evidence of the PIE Cultural Complex beyond the Caucasus and thus we could suggest those sort of things properly.
R1b was very common across all Europe during that time, probably came from Some Iron Gates HG group that went Steppe during E_Neolithic and wasn't properly examined yet, R1a-m417 was widely seen, Kurgans were first found at Volga, Don, Samara and Donets rivers, as well as Horse Domestication on Large Scale, funeral practices, religious custons.
IVC, Elamites, Mesopotamians and even Levantines, Minoans, etc.. had a totally different cultural scenario, probably those Southern Arc were Semitic or Afro Asiatic as Sumerians, Akkadians, Kassites, Elamites, Dradivians, etc.. and Indo European was a evolution from EHG-Dialects with some inovations introduced by contact with Afro-Asiatic and Mediterranean Societies.
"Mycenean profile was found before Bronze Age" some models suggest it, although i doubt that Heladic Greece or even Minoan had the Cultural Elements that were related to Proto Indo European, we could secure it by Archeology, if you doubt just take a look at Funeral Custom's, Religious Practices, Social Structure, etc.. also statistical models could easily been manipulated for some proposal, keep in mind that they weren't absolutely and without others evidences seems absurdism.
About EBA Lack of EHG Derived on Anatolian like IE we should remember that the first evidence of Anatolian presence across that area were at 1750 BC, so it is very likely that those EBA Anatolians could lack any ""Steppe"" influence and it doesn't contradict any sort of Evidence.
Indo Aryan and Iranian cultures were related to Androvo Horizon, well proved by Lineages, several archeological evidence, documents, etc.. IVC was Dravidian and they were spell to the South by Central Asian Invadors, carrying R1a-Z93, the dominant lineage across the Brahmin even to modern times.
I respect different opinions but cant find any single good argument for assuming that kind of crazy theory, those models placed PIE cultures with others that had not a single evidence of Indo European Culture, using "Statistical Models" without any sort of Human Science, those whom we should use as tools for understanding the Material Archeological evidence, those that could failled not only by bias but even cause those genetic analyses uses less than 1% of our Nucleotide's Pairs.
If PIE came from Iran then Elamites and Summerians were Indo Europeans, then first farmers(came from zagros) were Indo Europeans, then Dravidian southern india were indo european, then MATRIARCAL, SEDENTARY, Mediterranean Like Religious were Proto Indo Europeans, then Proto Indo European Culture simple didn't exist and Steppe Culture was just a bunch of Barbarian Nomads that adopted the language of the Females they had conquer or those Mesopotamian Like Chiefs were simple Cucked by Chad Steppe EHG?
I m joking but it is really funny, imagining Akkadians Indo Europeans, Kassites, Chaldeans, so why shouldn't us consider Hebrews indeed? Those Indo European from Iran seems very Afro Asiatic too me, maybe their women chief them with steppes and their descendants beyond caucasus brought their language but with EHG like Y-DNA.
Ok, if you want it, being descendant of a Cucked Lineages cause you want to make some bizarre larp, ok, why should i disagree?
